Replacement operator

A contractor from Santa Clara, CA says:
Hello,
Any chance you can help me identify this part? Unfortunately my crew was unable to identify the window manufacturer
Thanks
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Casey from SWISCO responded:

Hello,

I would recommend starting by comparing the specifications of the 39-354 and 39-045 operators to see if one of them matches your original assembly. Make sure to pay close attention to the arm length, wheel size, and installation hole spacing. Thank you!

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